The murder of a Naval Petty Officer leads Gibbs to uncover a shocking connection between the case and Director Vance's decision to disband his team.
While stationed on an aircraft carrier, DiNozzo finds that a Navy Lieutenant's apparent suicide may be connected to a larger, deadly scheme.
The NCIS team becomes entangled in the world of Washington politics when a distinguished Senator turns to Gibbs for help in solving the murder of a young, female naval officer. Meanwhile, Abby is on a mission to find out who ate her cupcake.
After two Marines are ambushed, the NCIS team finds the investigation leads back to Gibbs' hometown, where secrets about his past are revealed.
The hunt for a marine's murderer puts Gibbs on a collision course with an old friend, FBI Agent Fornell on NCIS.
During the week of Halloween, a murderous psychopath taunts the team by using the Internet to leave clues to the next victim's identity.
Gibbs second-guesses his own judgment when Vance assigns him a rookie to aid his team's investigation into a deadly bank robbery.
A shocking revelation comes to light after the team is forced into playing a dangerous war game.
The team must rely on information from some questionable individuals to stop a criminal bent on stealing government secrets.
After a petty officer dies in a car crash, the team suspects foul play when their investigation leads them into the violent world of underground street fighting.